Measure of the amount of hair per square inch on the scalp. Hair density is also referred to as light, medium or heavy. Hair density is also commonly defined as thin, medium or thick.
Amanda Freed, 1998 Gatorade High School Softball Player of The Year, "I always wear my hair in two braids w/ the same bows for games. Hey, I figure, if it works, why change it?" Jump Oct/Nov 98